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jok3333 [9.3K]
3 years ago
7

Rhett is solving the quadratic equation 0= x2 – 2x – 3 using the quadratic formula. Which shows the correct substitution of the

values a, b, and c into the quadratic formula?

Mathematics
1 answer:
lesya692 [45]3 years ago
4 0

Answer:

The correct option is 1.

Step-by-step explanation:

If a quadratic equation is defined as

ax^2+bx+c=0

then the quadratic formula is

x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}

The given equation is

0=x^2-2x-3

Here, a=1, b=-2 and c=-3.

Substitute these values in the above formula.

x=\frac{-(-2)\pm \sqrt{(-2)^2-4(1)(-3)}}{2(1)}

x=\frac{2\pm \sqrt{(-2)^2-4(1)(-3)}}{2(1)}

Therefore, the correct option is 1.

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5 0
2 years ago
Find the modal class interval.
photoshop1234 [79]

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Step-by-step explanation:

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4 0
3 years ago
What is the area of a circle with a radius of 6 inches?
Vika [28.1K]

Answer:

The answer to your question is   113.04 in²

Step-by-step explanation:

To solve this problem substitute the values in the formula and simplify.

Data

Area = ?

radius = 6 in

π = 3.14

Formula

Area = π x r²

Substitution

Area = (3.14) x (6)²

Simplification

Area = 3.14 x 36

Result

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Complete the formula to find the area of the triangle plz help I have only 15 mins left​
scoray [572]
1/2*3*4=6



Explanation:

The height is 3 cm and the base is 4cm.

I believe 5 is there to trick you. The bottom Is always the base and the straight line going vertically is always the height.


1/2*3*4=6
6 0
2 years ago
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